What a pity! I ________ with my uncle when in Hainan, but I stayed in a hotel．

must have stayed

might stay

may have stayed

could have stayed

Know more words and expressions, ________ you will find it easier to read and communicate．

then

or

but

and

Athletes from the new nation of South Sudan ________ under the Olympic flag for the first time in the 2012 Olympic Games．

compete

will compete

competed

have competed

________ nearly 400 miles before nightfall, all of us felt exhausted(筋疲力尽)．

Covering

Covered

Having covered

To be covered

The lecturer waited for the laughter to ________ before he could speak again．

die away

die down

die off

die out

________ it is important to have enough exercise, many people find the excuse that they can’t find the time．

When

That

While

As

We have just heard a warning on the radio that a sharp temperature decrease is ________ to come this evening．

possible

likely

probable

believable

The ________ look on her face indicates that the film on show must be ________ ; otherwise, she would not look so pale．

terrified; frightened

terrifying; frightened

terrified; frightening

terrifying; frightening

The moment she heard the news that the Chinese soccer team lost the game again, ________．

tears coming down from her face

and her tears came down

tears came down from Mary’s face

tears had already come down

Martial arts is a kind of traditional Chinese sport, ________ basic training always involves stretching and kicking．

which

as

that

where